EP1299267B1 - Systeme de retenue de passager pour vehicule automobile - Google Patents

Systeme de retenue de passager pour vehicule automobile Download PDF

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Publication number
EP1299267B1
EP1299267B1 EP00954311A EP00954311A EP1299267B1 EP 1299267 B1 EP1299267 B1 EP 1299267B1 EP 00954311 A EP00954311 A EP 00954311A EP 00954311 A EP00954311 A EP 00954311A EP 1299267 B1 EP1299267 B1 EP 1299267B1
Authority
EP
European Patent Office
Prior art keywords
acceleration
restraint system
occupant restraint
acceleration sensors
sensors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00954311A
Other languages
German (de)
English (en)
Other versions
EP1299267A1 (fr
Inventor
Michael Feser
Oskar Leirich
Jochen Uhde
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1299267A1 publication Critical patent/EP1299267A1/fr
Application granted granted Critical
Publication of EP1299267B1 publication Critical patent/EP1299267B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
    • B60R21/0133—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value by integrating the amplitude of the input signal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01013—Means for detecting collision, impending collision or roll-over
    • B60R2021/01027—Safing sensors

Definitions

  • EP 0 987 151 A1 is a restraint system known according to the preamble of claim 1.
  • Modern occupant restraint systems such as belt tensioners or airbags for the driver and / or front passenger trigger only if, for example, a frontal or angular impact.
  • a trigger should be against it for example, do not take place on bumpy roads, electromagnetic Intolerance as well as due to a Failure within the electronic circuit.
  • the object of the invention is therefore an occupant restraint system specify for a motor vehicle in which despite a very short tripping time better protection against false tripping is achieved.
  • the advantage of the invention is that predominantly already in Vehicle redundant information used for this purpose be able to reliably detect an impact and malfunctions to distinguish, so the extra effort for the replacement of the mechanical sensor is extremely low and with the exception of a few additional hardware components can be realized by software.
  • an occupant restraint system with a restraint to protect occupants in the motor vehicle and with at least two spatially separated electronic acceleration sensors arranged from each other to detect an impact (e.g. a front sensor and a sensor arranged centrally in the control device).
  • an impact e.g. a front sensor and a sensor arranged centrally in the control device.
  • the evaluation unit integrates those provided by the acceleration sensors Acceleration signals on, the evaluation unit separately or integrated into the acceleration sensors or can preferably be integrated into the control device. It is only triggered if the sum of the respective integrated acceleration signals evaluated with a weighting factor exceeds a certain minimum total value.
  • the integration of the acceleration signals is started if the signal has a certain threshold (minimum acceleration) exceeds.
  • the calculated integral subtracts a constant value in each calculation cycle. falls the acceleration below this constant value, the Amount of the integral with each calculation cycle. Do that Integral to the absolute value, there will be no further integration carried out.
  • an acceleration sensor is preferred in the Integrated control device and / or an acceleration sensor outsourced.
  • the outsourced acceleration sensor is preferably arranged in the front area of the vehicle. It can be preprocessing device in the outsourced acceleration sensor (possibly a controller) who performs signal preprocessing.
  • the Signal preprocessing can be done, for example, in a filtering and discretization of the acceleration signal.
  • a plausibility check is also preferably carried out in the control unit carried out. During the plausibility check for example, an evaluation of the acceleration signals performed that acceleration signals with extreme Signal jumps or unusual signal profiles are hidden become.
  • FIG. 1 With a driver airbag 2 and a passenger airbag 3 equipped. Of the vehicle 1 is the better clarity only the platform is shown in the drawing. At a central point, essentially in the In the middle of the vehicle 1 there is a central control device (ECU) 4, which are used to control the driver and front passenger airbags 2, 3 is connected to these.
  • the control device 4 contains an electronic acceleration sensor 5, a microcontroller 6 for signal processing and plausibility check is connected downstream.
  • the control device also contains circuit parts, not shown for signal processing and for generating the trigger signals for the driver airbag 2 and the passenger airbag 3.
  • Two further outsourced devices are also connected to the control device 4 electronic acceleration sensors 7 and 8 with each a downstream preprocessing device 9 or 10 connected for filtering and for analog-digital conversion.
  • the acceleration sensors 7 and 8 are in the Front area of the vehicle to the two front corners arranged of the vehicle. Are in the embodiment the two acceleration sensors 7 and 8 directly with the Control device 4 connected.
  • control device in particular also carries out a weighting of the integrated acceleration signals, the subsequent summation and the comparison with a predetermined minimum total value.
  • S stands for sum value, MS for minimum sum value, B 1 , B 2 , and B 3 for acceleration signals of the acceleration sensors 5, 7, 8 and K 1 , K 2 , and K 3 for the associated weighting factors.
  • the weighting factors depend in particular on the vehicle body (e.g. body rigidity) and the position of the individual acceleration sensors. If fewer or more acceleration sensors are used, the relationship must be adjusted accordingly.
  • Control device In addition to the implementation of the safing function, the Control device also the usual methods of impact detection applied, d. H. a direct evaluation of the individual acceleration signals.
  • FIG. 2 shows an embodiment of an arrangement for further processing the acceleration signals B 1 , B 2 and B 3 in the control device 4.
  • the arrangement shown can be implemented exclusively in hardware, exclusively in software or partly in hardware and partly in software. If the arrangement shown is at least partially implemented in software, it can be implemented in the central microcontroller or in a separate microcontroller. If a separate microcontroller is used, this can communicate with the central microcontroller. A mutual check of the acceleration signals is possible.
  • the signals B 1, B 2, and B 3 are each an integrator 11, 12, supplied 13 by a respective one of the acceleration signals B 1, B 2, and B 3 is acted upon comparator 14, 15 is controlled or sixteenth
  • the comparators 14, 15 and 16 activate the associated integrators 11, 12 and 13 when the respective acceleration signals B 1 , B 2 , and B 3 exceed a value corresponding to a minimum acceleration MB.
  • the integrators 11, 12 and 13 are followed by evaluation elements 17, 18 and 19 in order to carry out the desired weighting of the individual integrated acceleration signals B 1 , B 2 , and B 3 .
  • the weighted integrated acceleration signals B 1 , B 2 , and B 3 are then summed up by means of a summer 20, the output signal (sum signal S) of which is then compared with the minimum total value MS using a comparator 21.
  • a signal is then available at the output of the comparator 21 and can be used instead of a mechanical safing sensor.
  • Curve a gives the ride on poor road conditions or an off-road ride again while the Curve b shows the impact of the vehicle on an obstacle.
  • Curve a that remains Integral always the minimum total value MS and has no outstanding Gradients on. In the event of an impact it becomes too a certain point in time the minimum sum value MS by the Total value S exceeded.
  • one or more outsourced electronic acceleration sensors (electronic crash sensors).
  • Two or more of the acceleration sensors can Function of the previous mechanical acceleration sensor (Safing sensor) take over, whereby not only a replacement for the previous mechanical acceleration sensor provided is, but also the system function especially in Regarding the response time is significantly improved.
  • the spatial separation of at least two electronic ones Accelerometers affect electrical interference usually only on one of the two acceleration sensors out.
  • an occupant restraint system has one considerable cost advantage because of the mechanical acceleration sensors can be omitted and for example by lower cost integrated circuits can be replaced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Air Bags (AREA)
  • Automotive Seat Belt Assembly (AREA)

Claims (8)

  1. Système de retenue d'occupants pour un véhicule (1) comprenant
    un moyen de retenue (2, 3) pour la protection d'occupants situés dans le véhicule (1), au moins deux capteurs d'accélérations électroniques (5, 7, 8) destinés à la détection d'une collision, disposés séparément l'un de l'autre dans l'espace,
       une unité d'analyse (11, 12, 13) en aval des capteurs d'accélération destinée à l'intégration dans le temps (t) des signaux d'accélération (B1, B2, B3) élaborés respectivement par les capteurs d'accélération (5, 7, 8), ou de signaux qui en sont dérivés,
       un dispositif de commande (4) couplé à l'unité d'analyse (11, 12, 13) et/ou aux capteurs d'accélération (5, 7, 8), destiné à déclencher le moyen de retenue (2, 3) dans le cas d'une collision du véhicule (1), caractérisé en ce qu'
       un déclenchement ne se produit que si la somme (S) des signaux d'accélération (B1, B2, B3) intégrés et pondérés chacun par un facteur de pondération (K1, K2, K3) devient supérieure à une certaine valeur somme minimale (MS) ou chaque signal d'accélération (B1, B2, B3) intégré, ou un signal qui en est dérivé devient supérieur à un seuil correspondant.
  2. Système de retenue d'occupants selon la revendication 1,
    dans lequel l'unité d'analyse (11, 12, 13) est disposée dans le dispositif de commande (4).
  3. Système de retenue d'occupants selon la revendication 1 ou 2,
    dans lequel une intégration des signaux d'accélération (B1, B2, B3) ne se produit qu'au-dessus d'une accélération minimale (MB).
  4. Système de retenue d'occupants selon une des revendications précédentes, dans lequel un (5) des capteurs d'accélération (5, 7, 8) est intégré dans le dispositif de commande (4).
  5. Système de retenue d'occupants selon une des revendications précédentes, dans lequel un capteur d'accélération (7, 8) est déplacé.
  6. Système de retenue d'occupants selon la revendication 5, dans lequel le capteur d'accélération déplacé (7, 8) présente des moyens (9, 10) pour le traitement des signaux.
  7. Système de retenue d'occupants selon une des revendications précédentes, dans lequel l'unité de commande (4) effectue un contrôle de plausibilité.
  8. Système de retenue d'occupants selon une des revendications précédentes, dans lequel l'unité de commande (4) est reliée directement aux capteurs d'accélération (5, 7, 8) et, en supplément, analyse directement les signaux d'accélération (B1, B2, B3) élaborés par les capteurs d'accélération (5, 7, 8).
EP00954311A 2000-07-07 2000-07-07 Systeme de retenue de passager pour vehicule automobile Expired - Lifetime EP1299267B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2000/002222 WO2002004257A1 (fr) 2000-07-07 2000-07-07 Systeme de retenue de passager pour vehicule automobile

Publications (2)

Publication Number Publication Date
EP1299267A1 EP1299267A1 (fr) 2003-04-09
EP1299267B1 true EP1299267B1 (fr) 2004-05-19

Family

ID=5647750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00954311A Expired - Lifetime EP1299267B1 (fr) 2000-07-07 2000-07-07 Systeme de retenue de passager pour vehicule automobile

Country Status (6)

Country Link
US (1) US6970778B1 (fr)
EP (1) EP1299267B1 (fr)
JP (1) JP2004502593A (fr)
KR (1) KR100513953B1 (fr)
DE (1) DE50006536D1 (fr)
WO (1) WO2002004257A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60301260T2 (de) 2002-01-23 2006-03-09 Siemens Vdo Automotive Corporation, Auburn Hills Verfahren und vorrichtung zur bestimmung der entfaltung einer sicherheitsrückhaltevorrichtung in einem insassenrückhaltesystem
JP2005104320A (ja) * 2003-09-30 2005-04-21 Advics:Kk 車両制御装置
DE10350919A1 (de) * 2003-10-31 2005-05-25 Robert Bosch Gmbh Steuergerät und Beschleunigungssensorik
DE10358110A1 (de) * 2003-12-12 2005-07-14 Daimlerchrysler Ag Anordnung zur Sensierung eines Frontaufpralls eines Kraftfahrzeuges
DE102004051274A1 (de) * 2004-10-21 2006-04-27 Robert Bosch Gmbh Verfahren und Vorrichtung zum Anpassen einer Überwachungseinrichtung eines Steuergerätes für ein Rückhaltesystem eines Kraftfahrzeugs
JP4407572B2 (ja) * 2005-06-15 2010-02-03 株式会社デンソー 車両の衝突検知装置
US8113541B2 (en) * 2008-04-04 2012-02-14 Honda Motor Co., Ltd. Vehicle supplemental restraint system configuration and method
DE102011107519B4 (de) * 2011-07-15 2019-10-10 Continental Automotive Gmbh Verfahren zur Bewertung eines Aufpralls mittels Aufprallsensoren an einem Fahrzeug
GB201307980D0 (en) * 2013-05-02 2013-06-12 Redtail Telematics Ltd Method, apparatus and computer program for detecting collision

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Publication number Priority date Publication date Assignee Title
DE3816587A1 (de) 1988-05-16 1989-11-23 Messerschmitt Boelkow Blohm Einrichtung zur ausloesung einer passiven sicherheitseinrichtung
DE3920091A1 (de) * 1989-04-06 1990-10-11 Bosch Gmbh Robert Sicherheitseinrichtung fuer fahrzeuginsassen
US4958851A (en) 1989-05-01 1990-09-25 Automotive Systems Laboratory, Inc. Air bag firing circuit
JPH04361163A (ja) * 1991-06-07 1992-12-14 Takata Kk 車両衝突検知装置
US5506775A (en) * 1993-05-20 1996-04-09 Kansei Corporation Power source circuit for an occupant protecting device of motor vehicles
JPH07186876A (ja) * 1993-12-27 1995-07-25 Asuko Kk 車両用安全装置のための制御装置
JP2941643B2 (ja) * 1994-04-14 1999-08-25 三菱自動車工業株式会社 乗員保護装置の起動装置
JP2973902B2 (ja) 1995-11-06 1999-11-08 トヨタ自動車株式会社 乗員保護装置の起動制御装置
DE19619412C1 (de) * 1996-05-14 1997-08-28 Telefunken Microelectron Auslöseverfahren für passive Sicherheitseinrichtungen in Fahrzeugen
DE19645079A1 (de) * 1996-10-31 1998-05-07 Siemens Ag Steueranordnung für ein Insassenschutzsystem zum Seitenaufprallschutz in einem Fahrzeug
DE19740019A1 (de) 1997-09-11 1999-03-25 Siemens Ag Einrichtung für den Insassenschutz in einem Kraftfahrzeug
JP3063731B2 (ja) * 1998-04-02 2000-07-12 トヨタ自動車株式会社 乗員保護装置の起動制御装置
DE19827557B4 (de) * 1998-06-20 2004-07-08 Robert Bosch Gmbh Verfahren zum Erkennen eines Fahrzeug-Crashes
JP2000255373A (ja) * 1999-03-02 2000-09-19 Mitsubishi Electric Corp 車両衝突検出装置
US6438463B1 (en) * 1999-09-06 2002-08-20 Honda Giken Kogyo Kabushiki Kaisha Process for determining lateral overturning of vehicle, and system for detecting inclination angle of vehicle body

Also Published As

Publication number Publication date
KR100513953B1 (ko) 2005-09-13
WO2002004257A1 (fr) 2002-01-17
KR20030021237A (ko) 2003-03-12
US6970778B1 (en) 2005-11-29
DE50006536D1 (de) 2004-06-24
JP2004502593A (ja) 2004-01-29
EP1299267A1 (fr) 2003-04-09

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